Magnetic valve with short stroke armature - pole cure and magnetic armature cooperating via protrusion and corresp. recess
摘要
An e.m. actuator for a valve has a central pole piece (4) surrounded by a coil (3) and with an axially aligned amature element (6). The armature moves within a thin walled tubular pole piece (17) set into the top pole pieces and is of a non-magnetic material. With the armature in the lower position the bore of the valve (13) is closed. With a small air gap (14) between the armature and top pole piece, a high e.m. force is generated when the coil is energised to raise the armature. ADVANTAGE - Provides high force for small opening action.
申请公布号
DE3927150(A1)
申请公布日期
1991.02.21
申请号
DE19893927150
申请日期
1989.08.17
申请人
FICHTEL & SACHS AG, 8720 SCHWEINFURT, DE
发明人
KUEHNEL, JOACHIM, DIPL.-ING., 8721 DITTELBRUNN, DE;WIRTH, ALFRED, 8720 SCHWEINFURT, DE